Topological transition by dielectric control of exciton wavefunction in thin nanotube structure

Masami Kumagai, Toshihide Takagahara, Kousuke Yakubo

研究成果: Article

抄録

Dielectric control of the topology of an exciton wavefunction is proposed and investigated theoretically. As we have shown in a previous paper, we can change the topology of an exciton wavefunction in a nanotube structure by controlling the length and radius of the nanotube. This nature yields a new device which utilizes the topology of an exciton wavefunction, however, its control via the structural parameters does not suit it to device applications. We found that the in-situ control can be achieved by changing the ambient dielectric constants of the nanotube structure and we calculated the transition condition of the topology of an exciton wavefunction.

元の言語English
ページ(範囲)663-666
ページ数4
ジャーナルSolid State Communications
151
発行部数9
DOI
出版物ステータスPublished - 2011 5
外部発表Yes

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Wave functions
Electron transitions
Excitons
Nanotubes
nanotubes
topology
excitons
Topology
Permittivity
permittivity
radii
LDS 751

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry
  • Condensed Matter Physics

これを引用

Topological transition by dielectric control of exciton wavefunction in thin nanotube structure. / Kumagai, Masami; Takagahara, Toshihide; Yakubo, Kousuke.

:: Solid State Communications, 巻 151, 番号 9, 05.2011, p. 663-666.

研究成果: Article

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